#ifndef _physconst_h
#define _physconst_h

#include <iostream>

/*! \brief Physical constants and parameters.
 */
class physconst {
  public:
    double k,     //!< Boltzmann's constant [J/K]
           e,     //!< Electronic charge [C]
           Na,    //!< Avogadro's number [1/mol]
           pi,    //!< pi
           e_0,   //!< Permittivity of vacuum
           T,     //!< Temperature [K]
           e_r,   //!< Relative dielectric constant
           beta,  //!< 1/kT [1/J] 
           lB;    //!< Bjerrum length [AA]
    physconst(double=298.15, double=80.);
};
#endif

